Lock



June 12, 1923;

R. S. MURRELL LOCK Filed Oct. 8, 1920 4 Sheets-Sheet 1 FIBIZ F] El 1 5INVENTOR.

Fl El 7 RICHARD EMMU'RRELL June 12, 1923. 1,458,539

R. S. MURRELL I LOCK Filed Oct. 1920 4 Sheets-Sheet 2 Flam 4/ lll m 5244 5/ 35 Z: a

FIEIIU 37 FIEnS FIE-n12 INVENTOR.

RICHARD S. MURRELL A TORNEYJ R. S. MURRELL LOCK.

Filed on. a. 1920 4 Sheets-Sheet FIGIE RICHARD SBE MURRE LL I Mommy:

R. S. MURRELL June 112, 1923.

Locx

Filed 001;. a, 1920 4 Sheets-Sheet 4 FIEI IE1 FIEHIS IN VENT 0R.

RICHARD 5| M URRELL A TTORNE J Patented June 12, 1923.

UNITED srarss 1 PA NT or it:

asses RICHARD s. MURRELL, or COLUMBUS, OHIO, ASSIGNOR or oivn-rnrnn'roCLARENCE w. SHIGLEY, F coLUMBUsoHro.

LOCK,

Application filed October 8, 1920. Serial No. 415,543.

To all QU/LO'W'L it may concern: I

Be it known that I, RICHARD S. MURRELL, a citizen of the United Statesof America, residing at Columbus, in the county of Franklin and State ofOhio, have invented certain new and useful Improvements in Locks, ofwhich the following is a specification.

My present invention relates generally to locks applicable to lockerdoors, automobiles, residences, vaults, public buildings, offices, andin fact practically everywhere that special locking facilities arerequired, and is more particularly that type oflock, usually coincontrolled, where, upon the shifting of the locking bolt or member, akey disk and the like is discharged into the hands of the user and isrequired for subsequent insertion in order to shift the lock to openposition.

It is a com'mondisadv-antage of locks of this type which employ a keydisk, that nothing prevents the user from having duplicates of the keydisk made while in his possession, which he can subsequently use to opena locked door in an unwarranted manner.

The primary object of my invention is to provide a lock of the above,type inwhioh the above disadvantage is not present and in which thesubsequent unwarranted use of duplicates previously made isso unlikelyto be successful as to make its attempt im- 1 practical. I a

opening of the lock except by the use of the identical key diskdispensed or dis charged during the previous locking operation. Thesetting mechanism ust referred to partakes to a considerable extent ofthe nature of the tumblers of a lever lock, in fact its principalcomponents are tumbler lockin'thesense that the usual bolt throwing keyis avoided, thebolt moving to locked position either with or withoutrequiring a. coin'foi'" this purpose, and shifting in the depositsdirection to unlocked position, only Generally speaking my invention prolevers, and the lock as a whole is a keyless in the presence of that keydisk discharged at the previous locking operation.

Thus by the use of a series of key disks in the manner I will presentlydescribe,-,the-

danger of-fraud and theft is avoided and an element of safety assuredwhich cannot reside in those locks of its class now in use.

In the accompanying drawings which illustrate my invention and formapart of this specification.

, Figure lis a front view ofthe lock mechanism in unlocked position withthe front the parts partially shifted to unlocked position,

Figure 5 is a side view of the mechanism looking fromthe left of Figure1, with the left side wall of thecasing removed,

Figure 6 is a similar view looking in the opposite direction,

Figure J7 is a plan view of the mechanism with the top of the casingremoved, the

parts being in the position of Figure 1,

F igureS is a similar view. with the parts 1 in the position of Figure2,

Figure 9 is a crosssectiontakenon line 99 of Figure 4:, I

the key disks, i a I Figure ll is a side view thereof, Figure 12 isdetail view showingthe disk receiving aperture of thecasing,

Figure 13 is a detail'side view of the bolt carriage removed, v v I .1Figure'ld is a partial sideview thereof, Figures 15 and 16 arecrosssections taken and 1616 of Figure 4, I

I Figures 17 and 18 are respectively a side view and top plan of thecarriage" supporting bracketremoved,

Figure l9 is a partial sideiview illus tratin'g ayslight-ly modifiedform, and, I

Figure 20 is an elevation showing one of the many applications of theinventions,

Referring now to" thesefigureS; Tha ve' shown in Figures" 1 to" iparticularly recs parts Figure 10 isa. top plan. view of one ofposition,

respectively on lines 15 15 of Figure 3 tangular lock casing including arear plate 25, side walls 26 and 27, a top wall 28, and a front wall 29,see Figures 7 and 8, which has an upper coin receiving slot, a lowerdisk discharge opening and a disk receiving slot between the coin slotand discharge opening, respectively registering with the coin slot 30,disk discharge opening 31 and disk receiving slot 32of a door casing andthe like which may be the frame of a locker 33 as in Figure 20, adjacentto the door 34 whose control is sought to be effected. This latterfigure in particular illustrates the adaptability of the lock as awholeto doors opening in relatively opposite directions and located inadjacent relation to one another.

Through the front of the door frame projects a bolt operating handle 35,fixed to the forward end of a shaft 36 which is journaled through'therear and front plates 25 and 29 and extends loosely through the sidewings 37 ofa bolt throwing member 38 which swings in the casing withrotation of the shaft. The shaft also extends loosely through one end ofan actuating arm 39, one end of which is engageable by the member 38 andthe lower end of which is connected by a spring 40 with the upper end ofa vertically shiftable, locking slide 41 mounted to move upon the innersurface of the side wall 27.-

The bolt throwing member 38 has its lower portion straddling the bolt 42and also has a coin chute 43 which in the normal unlocked position shownin Figure 1 has its upper end opposite the coin slot and has its lowerend alined above a trans verse recess 44 in the upper edge of thesliding bolt 42, so that a coin 45, resting partially in this recess andpartially within the coin chute, forms a connection between the swingingmember 38 and the bolt 42 by means of which the latter may be shifted tothe locked position of Figure 2 with its freeend projecting externallythrough an opening in the side wall 26. The coin chute 43 has a sidewing 46 which moves opposite the coin receiving slot as the member 38 isshifted to locked position as in Figure 2 and prevents the entrance ofanother coin while the bolt is locked.

In order that the member 38 can yield to a slight extent at the limitsof its movement, the. connection between the same and the shaft 36 is inthe nature of a spring 47 coiled around the shaft with one end connectedthereto and the other end connected to member 38, the latter operatingin its swinging movement to locked position, to shift the locking slide41 downwardly in order to project its lower locking block 48 between theinner end of bolt 42 and the side wall 27. For this purpose member 38engages arm 39 which is connected to the cesses of the key disks.

upper portion of one of the wings 37 by a spring 49 to provide for itssubsequent upward movement.

The bolt 42 has a depending carriage shiftable therewith and is guidedin its movement by its free end in the wall opening and by a bracket 50secured to the side wall 26 the upper, inner portion of which carries atransverse guide pin 51 projecting through a lengthwise slot 52 of thebolt. The bolt carriage as seen particularly in Figure 13 includes anupright 53 having at its lower end inward angular extensions 54 andhaving upper vertically spaced horizontally disposed shelves 55 and 56,the former constituting a disk receiving plate and the latterconstituting a disk storage plate. At its inner end bolt 42 also has adepending extension 57 whose side plate 58 opposes the disk storagestation and terminates at its lower end a distance above the diskstorage plate 56 of about the thickness of one of the unlocking or keydisks 59. This extension 57 has an upper plate 60 slightly below thelevel of the disk receiving plate 55 and adjacent to the same for apurpose to be presently described.

The inner ends of the lower angular extensions 54 of the bolt carriageare connected by a transverse pin or shaft 61 upon which the lower endsof a series of tumblers or look setting levers 62 are mounted in aseries between a pair of disk guiding levers 63. Each of the severallevers 62 and 63 is connected to the carriage upright 53 by a spring 64and the levers or tumblers 62 have upper recessed ends or heads 65 tocooperate with a rectangular locking frame 66 at the lower portion ofthe locking slide 41. The levers 63 terminate below the upper ends oflevers 62 and, like the latter, are independently swingable inwardly bythe recessed edge of the lowermost key disk of the vertical series ofsuperposed key disks on the disk storage plate 56.

The bracket 50 has a lower inwardly projecting fork 67 which, duringmovement of the bolt 42 to locked position extends through apertures inthecarriage upright 53 and, being rigid and disposed 'in the plane ofthe lowermost key disk of the series,

forces said key disk from beneath the others and against the levers 63and also the tumblers '62 except those alined with the re- This movementof the parts appears in Figure 3 and by means thereof certain of thetumblers are shifted inwardly to receive thereove'r, and engage,thelocking frame 66. The other tumblers remain outside this frame and aresubsequently prevented thereby from inward shifting movement.

Thus in the locked position shown in Figure 2 the locking engagementbetween certain of the tumblers 62' and the fra-me6'6,

holds the slide 41 in lowered position, so that its block 48 preventsinward movement of the bolt; lVhen the parts have been locked andpressure on the handle is released, the key disk pressed out of theseries of disks as in Figure 3, is shifted clownwardly into akey diskdischarge chute 68 p comparatively simple construction, the sevcarriedby the upright 53 and thelatter registers, in this positionot'the, bolt,with the key di-skdiseharge opening 31. The key disk is shifted atthistime into this chute by the arms 63nnder tension of their spring 64as seen ind'otted lines in Figure 3, and the operator thusbecomespossessed of a key disk different in recessing from all otherkeys of the series, and the only one of the series capable of releasingthe look as it has, in discharging from the vertical series of disks,practically set'its' own combination.

For releasing the look by shifting the locking bolt 42 inwardly, thelower portion of I the bolt shifting member- 38 is movable againstlaterally projecting pins 69 of the" bolt, see Figures a and 9-, butuntil the proper key disk is inserted through slot 32,the,bolt cannot beshifted. lVhen the proper key disk is inserted it is positioned on thedisk receiving plate 55 in the position shown indotted lines in Figure 3so that the lower angular portions70 of the side wings 87 of the boltthrowing memberwill engage the same upon turning of the handle 35 intheproper direction. 1

During the. swinging movement of member to the position'of Figure 4 itis obvious such movement takes place relative to the arm 39, the latterremaining practically stationary as the key disk is shifted inwardlyinto engagement with the tumblers 62 which were previously pressedinwardly. As soon as these tumblers are freed from the. frame 66, theslide 4:1shifts upwardly by virtue of the tension of spring 49. Inpressing the tumblers 62 inwardly, the key disk has also en gagged andpressed the levers 63 inwardlyyso that whenthe disk is pushed inwardlybeyond the inner edge of the disk receiving plate 55. andpressurereleased, it drops and levers 63 shift the same forwardly onto the stackof disks resting on the storage plate 56.

At about the same time the tumblers 62' are releasedfrom the frame 66.the lower portion of member 38 engages the pins 69, thus at a time whenthe bolt 42 is free to shift inwardly to the normal released position ofFigure 1 upon further swinging movement of the handle.

Thus at each bolt releasing operation,

the key disk withdrawn from the bottom of the stack or magazine, isreturned to the top thereof, and 1t 1s thus obvious that the same keyd1sk 1s used once 111 so many operations only, dependent upon the numberof key disksin the 'magazine. It is alsoobvious that with a plurality oftumblers 62 the,

range of variationjin theformat-ion of the recessed edges of the disksisextremely wide, the number of combinations far beyond the requirements.i Q I The lock proposed'is' strong,'durable, of

eral parts capable ofready quick manufaca whole obviously avoids thedifiiculties and disadvantages of those known'at the'present ter tolockedp'osition. i i I As before stated, when the parts are in thenormal inactive position of. Figure 1, the coin chute43 isopposite thecoin receiving slot3O and when a coin has been inserted and the partsshifted to the-locked ture in large numbers, and the structure as 1jection 71 of the bolt 42 to throwthe latposition of Figure 2 the coinreceiving slot is covered by thewing 46 so that a coin can not bethoughtlessly placed in a lock already in use. In a similar manner,whenthe parts are in the locked position of'Fi'gure 2 the disk magazineand disk discharge'chute are respectively opposite the disk receivingaperture 32 and disk discharge slot 31, but

when-the parts are again inthe position-of Figure 1. the adjacent sideof the carriage upright-53 closes. said aperture and said slot bothagainst unwarranted withdrawal of a f diskand insertionof a keybelonging to an otherloc-k. T'

' 1..In a lock, a bolt, manually actuated means for slnfting the bolt tolocked and released positions, a single bolt lockingmember shiftable bysaid manual means into the .path'o-fretractile movement of andengageable, with the bolt when the latter is in locked 'position, aseries of tumblers selectively movable to engage and hold the: boltlocking inemberin effective position, a magazine, and a series ofsuccessively operable tumbler controlling members in the magazine, 5having differently positioned tumbler shifting means and havingindividual movement into engagement with the tumblers within and fromthe magazine upon actuation of the said manual bolt shifting means.

2. In a look, a bolt, .manually actuated means for shifting the bolt tolocked and released positions, a single 'boltlocking mern ber movableinto and out of effective position for securing the bolt in the lockedposition or the latter, a series of selectively operable tumblerslockingly engageable with the bolt for the purpose described.

tive position, and aseries'of' successively operable tumblercontroll1ng..membe'rs individually dischargeable from and insert-ablewithin' the lock, having differently positioned tumbler engaging andshifting means 3;In look, a bolt, manually actuated means for shiftingthe bolt to locked and released positions, a single bolt locking membermovable into and out of effective: position for securing the bolt in thelocked position'ozf the latter, a series of selectively operabletumblers lockingly engageable with the bolt securing member when the'latter is in effective position, and'a seriesof successively operabletumbler controlling members individually dischargeable from andinsertable within the lock, having differently positioned tumblerengaging and shifting means, anda magazinewithin the lock from one endofwhich a tumbler controllingmember is: dischargeable and into theopposite end of which the tumbler controlling member is insertable. i

4. In a lock, a manually shiftablebolt', a carriage'supported by andmovable with the bolthavi'ng'a magazine, a series of members havingdifferent tumbler controlling means in the magazine, each.disoh'argeable from one end ofthe magazine and insertable within theopposite'end, Ineans to discharge one of the said members duringmovement of the bolt to locked position, a bolt locking mem- "barshiftable into and out of effective position in the path of retractilemovement; of

vthe bolt, and a series of tumblers engag'ea-ble and Controlled by themembers of the magazine during movement of tho-latter into and out ofthe magazine, said tumblers being lockingly engageable with the boltlocking member when the latter is'moved' to effective position,

' 5'. In a look, a manually shiftable bolt, a

carriage supported "by and movable with the bolt having a magazine,"aseries ofmembers having different tumbler controlling means in themagazine, each dischargeable from'one end of the magazine and insertablewithin the opposite end, means todischarge one of said members duringmovement of the bolt to locked position, a. bolt locking mom J bershif'table into and out of effective position in the-path of retractilemovement of the bolt, and a series of tumblers engageableand controlledby the members of the magazine during movement of the latter. into andout of the magazine, said tumblers being lockingly engageable with thebolt locking member when the latter is moved to effective position, andbeing arranged in a series on the bolt carriage opposite the saidmagazine "and pivoted at one end for'the purpose described. a i A 6. In'alock, amanually shiftable bolt, acarriage supported by and movablewith the bolt having a magazine, a series of members having differenttumbler controlling means in the magazine, each dischargeable from oneend of the magazine'and insertable within the opposite end, means todischarge one of the said members during-movement of the bolt tolockedposition, a-bolt locking member shiftable into and out ofeffectiveposition in the path of retractilemovement of the bolt, and aseries of tumblers pivoted on the, carriage and selectively shiftableinto and out of locking' engagement with the bolt locking member undercontrol of sald magazine members sertioil within'the' magazine.

7. In a lock, a, bolt, a controlling handle, a swinging bolt shiftingmember having a yielding connection with the handle, a bolt lockingmember, an arm'forshif'ting the bolt locking member into effectiveposition havdurin discharge of the latter from and ining a movableconnection with said bolt shifting member, a series of selectivelymovable tumblers each-of which is lockingly engageable with the boltlocking member in the effective position, with the. latter, a carriagesupported-by and movable with the bolt, upon which the said tumblers aremovably mounted, a magazine in connection with the carriage, and aseries of tum bler controlling members in the magazine successivelyshiftablefrom one end' of the same and dischargeable from thelockduringeffective movementsof the-bolt to locked position, each of said membersbeing insertable into the opposite end of the magazine and each thereofhaving selectively positioned tumbler engaging portions enga-ge'ablewith the tumblers to respectively set and release the same upon movementof themembers out of and into the magazine.

In-testnnony whereof 1 have affixed my signature.

RICHARD s. MURRELT.

